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Understanding Interval Notation in Mathematics
science.howstuffworks.com/math-concepts/interval-notation.htm
Mathematicians use something called interval notation to convey information about a range of values in a way that's clear and easy to understand. This form of writing is necessary because intervals are common concepts in calculus, algebra and statistics.
What Is a Linear Pair of Angles in Geometry?
science.howstuffworks.com/math-concepts/linear-pair.htm
In the subjects of geometry and trigonometry, a linear pair of angles is any two adjacent angles formed together to add up to 180°, or Pi radians.
The Biggest Zoo in the U.S. (Plus 7 Other Gigantic Zoos)
animals.howstuffworks.com/animal-facts/biggest-zoo-in-the-us.htm
Zoos in the United States are home to some of the largest and most impressive collections of wild animals in the world. They serve the dual purpose of letting kids and adults view the animals while also helping protect endangered species and educating the public on wildlife conservation efforts.
What Does a Radiator Do?
auto.howstuffworks.com/how-does-radiator-cap-work.htm
The radiator of your car is composed of tubes that carry the coolant fluid, a protective cap that's actually a pressure valve, and a tank on each side to catch the coolant overflow. Learn more about how a radiator cap works from this article.
Every White Flag With a Red Cross We Could Find (and Then Some)
people.howstuffworks.com/culture-traditions/national-traditions/white-flag-with-red-cross.htm
Flags aren't just colorful pieces of fabric waving in the wind; they're symbols, each one packed with history, identity and meaning. Today, we're exploring a striking type of flag seen across the globe: the white flag with a red cross. (We'll also take a look at flags that display the inverse: a white cross on a red background).
7 of the 10 Largest Cities in Europe Are Capitals
people.howstuffworks.com/largest-cities-in-europe.htm
Although many major European cities are considered iconic, none of them break into the top 10 most populous cities in the world. The cities with the highest populations are spread through Asia, North America and Africa; the largest cities in Europe simply can't compete with those numbers.
Using Neon Colors in Fashion and Graphic Design
entertainment.howstuffworks.com/arts/artwork/neon-colors.htm
Neon colors, also sometimes referred to as fluorescent colors, are the rock stars of the visible spectrum — bold, electric and impossible to ignore.
5 Things You Didn't Know About Doughnuts
recipes.howstuffworks.com/5-things-didn-t-know-about-doughnuts.htm
Homer Simpson's favorite snack was once called 'oily cakes.' Find out more about this and other fun facts on doughnuts.
'The Powerpuff Girls' Quiz
play.howstuffworks.com/quiz/powerpuff-girls-quiz
The Powerpuff Girls proved that girls can take on the bad guys just as well as the boys! Take our quiz to see how much you know about these sweet young superheroes.
Red Lobster Owes Beyoncé Some Free Cheddar Bay Biscuits
entertainment.howstuffworks.com/red-lobster-owes-beyonce-free-cheddar-bay-biscuits.htm
HowStuffWorks asks if mentioning a name brand in a song always mean a sales bump for the company, or was the Beyonce/Red Lobster thing a fluke? .